1; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 2; RUN: -O2 < %s | \ 3; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,TAILCALL-32R2 4 5; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 6; RUN: -O2 < %s | \ 7; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,TAILCALL-64R2 8 9; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 10; RUN: -O2 -mcpu=mips32r6 -mips-compact-branches=always < %s | \ 11; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R6,TAILCALL-32R6 12 13; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 14; RUN: -O2 -mcpu=mips64r6 -mips-compact-branches=always < %s | \ 15; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R6,TAILCALL-64R6 16 17; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 18; RUN: -O2 -mcpu=mips32r6 -mips-compact-branches=never < %s | \ 19; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,TAILCALL-32R2 20 21; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 22; RUN: -O2 -mcpu=mips64r6 -mips-compact-branches=never < %s | \ 23; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,TAILCALL-64R2 24 25; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 26; RUN: -O2 -mattr=+micromips -mcpu=mips32r2 < %s | \ 27; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,TAILCALL-MM 28 29; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 30; RUN: -O2 -mattr=+micromips -mcpu=mips32r6 < %s | \ 31; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,TAILCALL-MM 32 33; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \ 34; RUN: -O0 < %s | FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,PIC-NOTAILCALL-R2 35 36; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \ 37; RUN: -O0 < %s | FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,PIC-NOTAILCALL-R2 38 39; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \ 40; RUN: -O0 -mcpu=mips32r6 -mips-compact-branches=always < %s | \ 41; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R6,PIC-NOTAILCALL-R6 42 43; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \ 44; RUN: -O0 -mcpu=mips64r6 -mips-compact-branches=always < %s | \ 45; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R6,PIC-NOTAILCALL-R6 46 47; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \ 48; RUN: -O0 -mcpu=mips32r6 -mips-compact-branches=never < %s | \ 49; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-32,JALR-32R2,PIC-NOTAILCALL-R2 50 51; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \ 52; RUN: -O0 -mcpu=mips64r6 -mips-compact-branches=never < %s | \ 53; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-64,JALR-64R2,PIC-NOTAILCALL-R2 54 55; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \ 56; RUN: -O0 -mattr=+micromips -mcpu=mips32r2 < %s | \ 57; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,PIC-NOTAILCALL-MM 58 59; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic \ 60; RUN: -O0 -mattr=+micromips -mcpu=mips32r6 < %s | \ 61; RUN: FileCheck %s -check-prefixes=ALL,JALR-ALL,JALR-MM,PIC-NOTAILCALL-MM 62 63; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 64; RUN: -O2 -mips-jalr-reloc=false < %s | \ 65; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 66 67; RUN: llc -mtriple=mips-linux-gnu -relocation-model=static -mips-tail-calls=1 \ 68; RUN: -O2 < %s | \ 69; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 70 71; RUN: llc -mtriple=mips-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 72; RUN: -O0 -mips-jalr-reloc=false < %s | \ 73; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 74 75; RUN: llc -mtriple=mips-linux-gnu -relocation-model=static -mips-tail-calls=1 \ 76; RUN: -O0 < %s | \ 77; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 78 79; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic -mips-tail-calls=1 \ 80; RUN: -O2 -mips-jalr-reloc=false < %s | \ 81; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 82 83; RUN: llc -mtriple=mips64-linux-gnu -mips-tail-calls=1 \ 84; RUN: -O2 -relocation-model=static < %s | \ 85; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 86 87; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=pic \ 88; RUN: -O0 -mips-jalr-reloc=false < %s | \ 89; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 90 91; RUN: llc -mtriple=mips64-linux-gnu -relocation-model=static \ 92; RUN: -O0 < %s | \ 93; RUN: FileCheck %s -check-prefixes=ALL,NORELOC 94 95define internal void @foo() noinline { 96entry: 97 ret void 98} 99 100define void @checkCall() { 101entry: 102; ALL-LABEL: checkCall: 103; ALL-NOT: MIPS_JALR 104 call void @foo() 105; JALR-32: .reloc ([[TMPLABEL:\$.+]]), R_MIPS_JALR, foo 106; JALR-64: .reloc [[TMPLABEL:\..+]], R_MIPS_JALR, foo 107; JALR-MM: .reloc ([[TMPLABEL:\$.+]]), R_MICROMIPS_JALR, foo 108; NORELOC-NOT: .reloc 109; JALR-ALL-NEXT: [[TMPLABEL]]: 110; JALR-32R2-NEXT: jalr $25 111; JALR-64R2-NEXT: jalr $25 112; JALR-32R6-NEXT: jalrc $25 113; JALR-64R6-NEXT: jalrc $25 114; JALR-MM-NEXT: jalr $25 115; ALL-NOT: MIPS_JALR 116 ret void 117} 118 119define void @checkTailCall() { 120entry: 121; ALL-LABEL: checkTailCall: 122; ALL-NOT: MIPS_JALR 123 tail call void @foo() 124; JALR-32: .reloc ([[TMPLABEL:\$.+]]), R_MIPS_JALR, foo 125; JALR-64: .reloc [[TMPLABEL:\..+]], R_MIPS_JALR, foo 126; JALR-MM: .reloc ([[TMPLABEL:\$.+]]), R_MICROMIPS_JALR, foo 127; JALR-ALL-NEXT: [[TMPLABEL]]: 128; NORELOC-NOT: .reloc 129; TAILCALL-32R2-NEXT: jr $25 130; TAILCALL-64R2-NEXT: jr $25 131; TAILCALL-MM-NEXT: jrc $25 132; TAILCALL-32R6-NEXT: jrc $25 133; TAILCALL-64R6-NEXT: jrc $25 134; PIC-NOTAILCALL-R2-NEXT: jalr $25 135; PIC-NOTAILCALL-R6-NEXT: jalrc $25 136; PIC-NOTAILCALL-MM-NEXT: jalr $25 137; ALL-NOT: MIPS_JALR 138 ret void 139} 140 141; Check that we don't emit R_MIPS_JALR relocations against function pointers. 142; This resulted in run-time crashes until lld was modified to ignore 143; R_MIPS_JALR relocations against data symbols (commit 5bab291b7b). 144; However, the better approach is to not emit these relocations in the first 145; place so check that we no longer emit them. 146; Previously we were adding them for local dynamic TLS function pointers and 147; function pointers with internal linkage. 148 149@fnptr_internal = internal global void()* @checkFunctionPointerCall 150@fnptr_internal_const = internal constant void()* @checkFunctionPointerCall 151@fnptr_const = constant void()* @checkFunctionPointerCall 152@fnptr_global = global void()* @checkFunctionPointerCall 153 154define void @checkFunctionPointerCall() { 155entry: 156; ALL-LABEL: checkFunctionPointerCall: 157; ALL-NOT: MIPS_JALR 158 %func_internal = load void()*, void()** @fnptr_internal 159 call void %func_internal() 160 %func_internal_const = load void()*, void()** @fnptr_internal_const 161 call void %func_internal_const() 162 %func_const = load void()*, void()** @fnptr_const 163 call void %func_const() 164 %func_global = load void()*, void()** @fnptr_global 165 call void %func_global() 166 ret void 167} 168 169@tls_fnptr_gd = thread_local global void()* @checkTlsFunctionPointerCall 170@tls_fnptr_ld = thread_local(localdynamic) global void()* @checkTlsFunctionPointerCall 171@tls_fnptr_ie = thread_local(initialexec) global void()* @checkTlsFunctionPointerCall 172@tls_fnptr_le = thread_local(localexec) global void()* @checkTlsFunctionPointerCall 173 174define void @checkTlsFunctionPointerCall() { 175entry: 176; There should not be any *JALR relocations in this function other than the 177; calls to __tls_get_addr: 178; ALL-LABEL: checkTlsFunctionPointerCall: 179; ALL-NOT: MIPS_JALR 180; JALR-ALL: .reloc {{.+}}MIPS_JALR, __tls_get_addr 181; ALL-NOT: MIPS_JALR 182; JALR-ALL: .reloc {{.+}}MIPS_JALR, __tls_get_addr 183; NORELOC-NOT: .reloc 184; ALL-NOT: _MIPS_JALR 185 %func_gd = load void()*, void()** @tls_fnptr_gd 186 call void %func_gd() 187 %func_ld = load void()*, void()** @tls_fnptr_ld 188 call void %func_ld() 189 %func_ie = load void()*, void()** @tls_fnptr_ie 190 call void %func_ie() 191 %func_le = load void()*, void()** @tls_fnptr_le 192 call void %func_le() 193 ret void 194} 195